Arabic numeralia (or al-'adad) is a numerical construction that has an impact on the depth of understanding to Arabic numeral contexts adjacent to the Indonesian system. Therefore, the depth is used as the target of research in order to find and analyze the errors Indonesian learners make in forming the constructions. From the counter-analysis and error analysis, there are implications of numerals to Indonesian learners. Qualitative methods are used and focused on the use of data in the form of words, phrases, sentences, drawings, or charts and quantitative methods is focused on data expressed in terms of numbers, both nominal and interval data. From the operation of the theories and methods it is found that there are errors in the numerical control of Arabic by Indonesian learners. Quantitatively, the errors are closely related to the correlation of the linguistic domain of the learners and the depth of numerical knowledge of Indonesian and Arabic languages ​​to numerical learning in Indonesia.